Description
Stack-based buffer overflow in the get_packet method in socket.c in dhcpcd 3.2.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long packet.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | dhcpcd | 1:3.2.3-11 | — |
| Debian 13 | dhcpcd | 1:3.2.3-11 | — |
| Debian 6.0 | dhcpcd | 1:3.2.3-5+squeeze1 | DSA-2498-1 |
Advisories 2
- DSA-2498-1 dhcpcd - remote stack overflow Debian Security (DSA / DLA) · Mar 9, 2026
- ICSA-15-344-01B Advantech EKI Vulnerabilities (Update B) CISA ICS & IT advisories · Jun 9, 2025
References
- DSA-2498 vendor-advisory
- 53354 vdb-entry
- https://bugzilla.novell.com/show_bug.cgi?id=760334
- [oss-security] 20120502 Re: CVE Request: dhcpcd 3.2.3 remote stack overflow / denial of service mailing-list
- [oss-security] 20120502 CVE Request: dhcpcd 3.2.3 remote stack overflow / denial of service mailing-list